Detroit-based General Motor Co.’s Cadillac today appointed Deborah Wahl to global chief marketing officer. In her new position, Wahl will be based in Cadillac’s New York headquarters and will be responsible for leading the strategic marketing for the Cadillac brand around the world.

President and CEO of the Edsel and Eleanor Ford House in Grosse Pointe Shores and Fair Lane, home of Clara and Henry Ford in Dearborn, Kathleen Mullins, has announced plans to retire, effective May 31. In coming weeks, the Board of Trustees plans to name an interim CEO and will conduct a national search for a permanent replacement.

Southfield-based JGA, a branded environments firm, has announced Ed Doyle vice president of operations. In his new role, Doyle will support strategic growth and oversee day-to-day operations, including project implementation, business development support, client success, and staff operations and development.

Detroit-based Dykema, a national law firm, Wednesday announced the appointment of Adam Fishkind to managing member of the firm’s Bloomfield Hills office. Fishkind is a member of the firm’s real estate practice group.

Midland-based Chemical Bank has announced the promotions of Paul Fuller to director of deposit operations and Ed Kessler to chief information officer. Greg Bixby has been hired as chief delivery officer.

Dallas-based HKS Inc., an American international architecture firm with more than 1,400 architects, interior designers, urban designers, scientists, artists, anthropologists, and other professionals, has announced Kendall Ruhberg as associate principal, Steve Stroman as vice president, and Jacqueline Colaianni as associate in the firm’s Detroit office.